Han Jiaguang, Gu Jianqiang, Lu Xinchao, He Mingxie, Xing Qirong, Zhang Weili
Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore.
Opt Express. 2009 Sep 14;17(19):16527-34. doi: 10.1364/OE.17.016527.
We present a systematic numerical study of a metal-dielectric-metal sandwich plasmonic structure for broadband resonant transmission at terahertz frequencies. The proposed structure consists of periodic slotted metallic arrays on both sides of a thin dielectric substrate and is demonstrated to exhibit a broad passband transmission response. Various design considerations have been investigated to exploit their influence on the transmission passband width and the center resonance frequency. The structure ensures a broadband transmission over a wide range of incident angles.
